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49

SCSI SWITCH (FOR AS/400

®

)

0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00

dcb->ncr        = 0x00000000
dcb->status_buf = 0x00
dcb->retryCnt   = 0x00
dcb->dev_state  = 0x00
dcb->neg_state  = 0x05
dcb->scsi_id    = 0x01
dcb->ior        = 0x00C0471C

Controller structures:

Target Q:
=========
Queue->front = 0x00000000
Queue->rear  = 0x00000000
Queue->len   = 0x0000

Read Buffer Q:
==============
Queue->front = 0x00000000

Summary of Contents for SW847A

Page 1: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 1995 Black Box Corporation All rights reserved...

Page 2: ...ll 724 746 5500 or fax 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com DECEMBER 1995 SW847A SW848A SCSI Swi...

Page 3: ...camente con carritos o pedestales que sean recomendados por el fabricante 7 El aparato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante 8 Servicio El usuari...

Page 4: ...iado nicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir una antena externa deber ser localizada lejos de las lineas de energia 16 El cable de corriente deber ser desconect...

Page 5: ...I SWITCH FOR AS 400 TRADEMARKS IBM and AS 400 are registered trademarks of International Business Machines Corporation All applied for and registered trademarks are the property of their respective ow...

Page 6: ...for AS 400 9 3 1 Subsystem Requirements 9 3 2 Installing the SCSI Switch into the Rack 10 4 Configuring and Operating the SCSI Switch for AS 400 17 4 1 Configuring the SCSI Switch to the AS 400 17 4 2...

Page 7: ...15 5 to 32 C Relative Humidity 20 to 80 Cables Required SW847A 1 for connection to tape device included with your tape device 2 for connection to host CPUs included with the SCSI Switch SW848A 2 for c...

Page 8: ...witch provides your site with complete unattended tape drive sharing between multiple AS 400 hosts The SCSI Switch eliminates the added purchase and maintenance costs needed to support separate 36 tra...

Page 9: ...rating 60 to 90 F 15 5 to 32 C Non operating 40 to 122 F 40 to 50 C Humidity noncondensing Operating 20 to 80 Non operating 10 to 90 Power Requirements The SCSI Switch for AS 400 requires a dedicated...

Page 10: ...e SCSI Switch for AS 400 Subsystem is packaged in electrically conductive containers Save all packing material in case you need to ship store or move the units later After you remove the SCSI Switch f...

Page 11: ...ng the IBM 9309 Rack WARNING Disconnect power before servicing You might be shocked The rack mounted SCSI Switch requires 2 EIA units of vertical space One EIA is equal to 1 75 inches EIA is the acron...

Page 12: ...he lower EIA unit to be used by putting a 10 32 screw in holes A and B of the EIA unit 2 Place the rails in position in the rack and tighten the screws 3 Extend the rails out of the rack to the locked...

Page 13: ...hru Terminator 1 1 Included External wide SCSI cable 2 4 Included 2 m Standard SCSI cable 1 2 Figure 3 2 Cabling the SCSI Switch I 0 HOST A HOST B TAPE SERVICE PORT 1 2 To 6501 Cable included To 6501...

Page 14: ...low the cabling instructions listed above but attach the cables to the top row of connectors Figure 3 3 Two AS 400 Hosts One IPL 6790E IPL 6790E FEED THRU TERMINATOR HOST A HOST B TAPE SCSI SWITCH for...

Page 15: ...cable between the tape drive and the IOP and replace it with the cable supplied with the switch With tape drives mounted side by side the lower connectors will control the tape drive on the left the u...

Page 16: ...onfiguration the SCSI Switch SW848A supports unattended switching for two tape drives and four AS 400 hosts Figure 3 5 SCSI Switch SW848A Maximum Configuration Tape Drive Tape Drive AS 400 9406 AS 400...

Page 17: ...d to end all systems endsbs all immed When all subsystems have ended enter the following pwrdwnsys immed 2 Install the tape drive and the SCSI Switch 3 Power on one of the AS 400 hosts 4 Create the co...

Page 18: ...escription screen Enter the required parameters to create the device description Device description TAP02 this is an example Device type 3490 Device model ANY Resource name TAP02 this is an example Sw...

Page 19: ...vice will be in a varied off status Allocated state The controller will be in an active status and the tape device will be in a varied on status Software The effective use of the SCSI Switch for AS 40...

Page 20: ...ssage and automate the response Below are some of the messages that could be monitored for these messages as of V2R3 of OS 400 CPF2640 Vary Command Not Processed CPF6708 Command Ended Due to Error 3 B...

Page 21: ...installed the SCSI Switch is primarily controlled by the AS 400 software But the SCSI Switch also provides manual override and lets you load new microcode into the SCSI Switch controller The front pa...

Page 22: ...drive until Host A releases the switch or the manual switch is moved to Host B Switch Ready On Normally on Indicates the switch is active and ready to accept host commands Off Controller fault or tar...

Page 23: ...se of the tape drive Once a hosts owns a tape drive it is free to release it at any time Host B Host B always owns the tape drive The tape drive cannot be released by software for use by Host A There...

Page 24: ...end with an error condition Auto to Host B Host B owns the tape drive regardless of the current state of the SCSI Switch If Then Host A had ownership or Its host interface is reset and an actively ex...

Page 25: ...arbitrate for the tape drive Host A to Host B Host B is granted tape ownership Host A s host interface is reset and Host A s process is aborted If Then A command is executing It will be driven to bus...

Page 26: ...back of the tape drive b Change the SCSI ID by pressing either the top or bottom button until F is displayed in the ID window c The tape drive must be power cycled in order for a new SCSI ID to be rec...

Page 27: ...the tape drive b Press either the top or bottom button until 0 is displayed in the ID window c Note that the tape drive must be power cycled for a new SCSI ID to be recognized 13 Power on the tape dr...

Page 28: ...ion without using the monitor follow these steps 1 Power off the SCSI Switch and wait a few seconds 2 Power on the SCSI Switch 3 Go to step 6 of the normal microcode load procedure The most common rea...

Page 29: ...switch on Host B Manually switch to a Host B Does it work No Replace external cable pn 560 636 900 Does it work No Connect drive directly to Host B and retry Does it work No Problem with drive Refer t...

Page 30: ...service port You must use a null modem cable to connect the service port to the PC or terminal Serial port parameters are non configurable and must be set up as follows Baud 9600 Parity None Handshake...

Page 31: ...that index The monitor has range checking so if an index is specified that has no entry in it the monitor will tell the user that the index is out of range Also if there are no entries in the trace bu...

Page 32: ...Target Cmd c0h submitted 009b Target 02h message rejected 009c Target status 00h 009d Target c0h Command complete Trace End Next available index 9e G Go Command G Syntax G or G address Purpose Go Thi...

Page 33: ...dicates mandatory argument indicates optional argument D index Dump trace buffer starting at non zero index or D if no index G addr Continue program execution at addr or at program interruption if no...

Page 34: ...dress by the appropriate amount Entering a comma will decrement the address If the address is not mapped to a chip select the monitor will print No chip select for address address and the monitor will...

Page 35: ...e file transfer capability of Windows Terminal or Procomm Plus The new microcode does not get executed until the box is power cycled or soft reset using the monitor s RST command To abort a download y...

Page 36: ...ed the monitor should print File transmission successful Starting flash programming A series of dots will slowly be displayed This indicates that the flash is being programmed Do not turn off power wh...

Page 37: ...uffer but gives detailed trace information Examples T0 T1 VB View Bytes Command VB Syntax VB address Purpose View Bytes This command allows the user to view bytes of memory a page at a time The raw da...

Page 38: ...0 00 00 05 56 00 00 05 64 V d 00000098 00 00 05 72 00 00 05 80 r More VB C70400 00C70400 9b 4d 00 00 00 00 c2 ca M 00C70408 20 36 37 39 30 52 54 49 6790RTI 00C70410 4d 45 00 00 3f 3c 00 0e ME 00C70418...

Page 39: ...w the sector 0 monitor microcode revision if executing the sector 0 monitor or the sector 0 monitor and runtime code revisions if executing the runtime monitor Examples VR VS View System Dump Command...

Page 40: ...0 scntl3 0x1b scntl2 0x80 scntl1 0x30 scntl0 0xc9 sdid 0x00 sxfer 0x28 scid 0x20 dstat 0x84 dsa 0x00c048f0 istat 0x08 ctest0 0x80 temp 0x00c00038 dfifo 0x00 cmd dbc 0x98020000 dsp 0x00c00048 dsps 0x00...

Page 41: ...0x80 temp 0x00c00370 dfifo 0x00 cmd dbc 0x54000000 dsp 0x00c00350 dsps 0x00000210 scratcha 0x00000000 dcntrl 0x00 dien 0x7f dmode 0x80 sist1 0x00 sist0 0x00 sien1 0x04 sien0 0x8f rspd id1 0x00 rspd i...

Page 42: ...08 0003 Target Cmd 0x11 submitted 0004 Target command 0x11 cmd cmplt status 0x00 0005 Host A command 0x11 status 0x00 0006 Host A command 0x11 cmd complete 0x00 0007 Host A command 0x01 received 0008...

Page 43: ...mmand 0x1a cmd complete 0x00 0146 Host A command 0x15 cmd complete 0x00 Ior 00 Ior Address 0x00C0437C Ior tbl cmd_cnt 0x00000006 Ior tbl cmd_bufp 0x00C043C0 Ior tbl dat_cnt 0x00008000 Ior tbl dat_bufp...

Page 44: ...r tbl msgo_bufp 0x00C04450 Ior tbl msgi_cnt 0x00000000 Ior tbl msgi_bufp 0x00C0437C Ior tbl scntl3 0x1b Ior tbl scsi_id 0x01 Ior tbl sxfer 0x28 Ior next 0x00000000 Ior bufp 0x00C18000 Ior hcbp 0x00C04...

Page 45: ...0x00 0x00 0x00 0x00 Ior msgi_buf 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 Ior msgo_buf 0x07 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00...

Page 46: ...0x00 0x00Hcbp status_buf 0x00 Hcbp retryCnt 0x00 Hcbp dev_state 0x00 Hcbp neg_state 0x05 Hcbp host_mask 0x15 Hcbp host B Hcbp sense err_code 0x70 Hcbp sense sense_key 0x06 Hcbp sense asc 0x29 Hcbp sen...

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